Grand Theft Auto 5 -- My Number One Favourite
Watchdogs - Awesome concept and Original Gameplay
Elder Scrolls Skyrim - One of the best games ever created
Need for Speed Most Wanted - My Best Racing Game ever
Far Cry 3 - How can we forget the ending of that game One of the amazing games in Open World
Just Cause 2 - Raw Masculine Power with amazing graphics

PS: I am sorry for listing so many names but it would not be fair for rest of the games if i named only one since they all deserve it